Device and method for regulating and controlling ladle bottom argon blowing flow

Abstract

The invention discloses a device and a method for regulating and controlling ladle bottom argon blowing flow, which mainly solve the technical problems of low control precision and low automation degree of the existing ladle bottom argon blowing flow. The scheme of the invention is as follows: the device for regulating and controlling ladle bottom argon blowing flow comprises a steel ladle bottomargon blowing valve opening degree control PLC and a steel ladle bottom argon blowing flow regulating valve, wherein the ladle bottom argon blowing flow regulating valve is fixedly arranged on a ladlebottom argon blowing pipeline, the ladle bottom argon blowing valve opening degree control PLC is connected with the ladle bottom argon blowing flow regulating valve through a communication cable, and the ladle bottom argon blowing flow regulating valve is an electric valve; the device further comprises a visual sensor, an image processing unit and a steel ladle bottom blowing valve opening degree control unit which are installed above the steel ladle, the visual sensor is connected with the image processing unit through a communication cable, and the steel ladle bottom blowing valve openingdegree control unit is a steel ladle bottom blowing valve opening degree control computer. The molten steel refining cost is reduced.

Description

technical field [0001] The invention relates to a device for regulating the flow rate of ladle bottom blowing gas, in particular to a device and method for regulating the flow rate of ladle bottom blowing argon gas, and belongs to the technical field of automatic control of steel smelting and continuous casting. Background technique [0002] In modern steelmaking production, the molten steel needs to be refined before the molten steel is cast into a slab by the continuous casting machine, and the alloy content of the molten steel is further adjusted through the refining of the molten steel, so as to promote the floating of inclusions in the molten steel, uniform the composition and temperature of the molten steel, Make the molten steel more pure, thereby improving the cleanliness of the molten steel and obtaining high-quality billets. [0003] The existing ladle bottom blowing control process is relatively single, relying only on manual control, the stirring effect is random...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a device and method for regulating the flow rate of argon blowing at the bottom of the ladle, which mainly solves the technical problems of low control precision and low degree of automation of the flow rate of argon blowing at the bottom of the ladle

The present invention realizes automatic bottom blowing control by adopting sensor and computer control, improves bottom blowing stirring effect, and stabilizes molten steel quality; tracks ladle use history, adopts self-learning method, optimizes bottom blowing control strategy, speeds up bottom blowing control hit target speed, ensures The rhythm of steelmaking production overcomes the shortcomings of the existing manual operation of bottom blowing and mixing, high labor intensity of operators, and large fluctuations in bottom blowing effects.

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